泡沫灭火系统封闭空间是指由()或者非燃烧体所包容的空间。A、难燃烧体 B、可燃烧体 发布时间:2017-07-25 03:19 │ 来源:www.tikuol.com 题型:单项选择题 问题: 泡沫灭火系统封闭空间是指由()或者非燃烧体所包容的空间。A、难燃烧体B、可燃烧体C、易燃烧体D、燃烧体
题型:单项选择题 I have _____ for my pen everywhere, but I just can't _____ it.[ ]A. found, find B. found, look C. looked, findD. looked, look 查看答案
题型:单项选择题 The State’s Department of Commerce in the U.S. is ______ to our Bureau of Economic Development.A. alike B. equivalent C. same D. approximate 查看答案